Soft absorbent tissue paper with high permanent wet strength

D - Textiles – Paper – 21 – H

Patent

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Details

D21H 17/55 (2006.01) D21H 17/07 (2006.01) D21H 17/37 (2006.01) D21H 17/06 (2006.01) D21H 17/53 (2006.01)

Patent

CA 2122242

Tissue paper webs useful in the manufacture of soft, absorbent products such as paper towels. napkins, and facial tissues, and processes for making the webs. The tissue paper webs comprise papermaking fibers, a quaternary ammonium compound, a polyhydroxy plasticizer, and a permanent wet strength resin. The process comprises a first step of forming an aqueous papermaking furnish from the above-mentioned components. The second and third steps in the basic process are the deposition of the papermaking furnish onto a foraminous surface such as a Fourdrinier wire and removal of the water from the deposited furnish. An alternate process involves the use of the furnish containing the aforementioned components in a papermaking process which will produce a pattern densified fibrous web having a relatively high bulk field of relatively low fiber density in a patterned array of spaced zones of relatively high fiber density.

Bandes de papier mousseline utiles dans la production de produits doux, absorbants, tels que des serviettes en papier, des serviettes de table et des serviettes rafraîchissantes, et procédés de production des bandes. Les bandes de papier mousseline comprennent des fibres de fabrication de papier, un composé d'ammonium quaternaire, un plastifiant à base de polyhydroxy ainsi qu'une résine à résistance à l'humidité permanente. Le procédé comprend une première étape consistant à former une composition de fabrication de papier aqueuse à partir des constituants précités. Les seconde et troisième étapes du procédé de base consistent à déposer la composition de fabrication de papier sur une surface poreuse telle qu'une toile Fourdrinier, et à éliminer l'eau de la composition déposée. Un autre procédé consiste à utiliser la composition contenant les constituants précités dans une technique de fabrication de papier permettant la production d'une bande fibreuse densifiée par une structure ayant un champ de volume relativement élevé de densité fibreuse relativement faible dans un réseau structuré de zones espacées de densité de fibres relativement élevée.

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